Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9530f76a61b3730…

MALICIOUS

PDF

45.9 KB Created: 2020-09-18 00:16:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0407ab908cfe66149445bf12554d4b8e SHA-1: b97fef6ab7573e0cee9d0b8d4a4289ee0f27ebb8 SHA-256: d9530f76a61b373056d74c9c4813786add58500d8861228bc58d141bb3c85ef3
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector pointing to 'https://ttraff.me/wix?keyword=big+win+soccer+mod+apk'. The document body, though heavily obfuscated, contains similar text, reinforcing the lure. The presence of a large number of external PDF links suggests a link farm or SEO poisoning attempt to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.me/wix?keyword=big+win+soccer+mod+apk
    • http://files.matthewkingphotography.com/uploads/1/3/1/4/131437680/43175.pdf
    • http://files.usafala.afaparents.org/uploads/1/3/0/7/130775911/8247624.pdf
    • http://files.gettysburgchambermusic.org/uploads/1/3/0/7/130775257/vusewawikub.pdf
    • http://karetifi.sacredheartepri.com/uploads/1/3/1/3/131379803/fopezikidolo-daboxo.pdf
    • http://files.manorumc.org/uploads/1/3/2/7/132712129/sakutubareg.pdf
    • http://vosijo.allensonarmory.com/uploads/1/3/1/4/131407227/ed957.pdf
    • http://laxamug.jbcoachescorner.com/uploads/1/3/2/3/132303195/kikete.pdf
    • http://files.stimuluslanka.com/uploads/1/3/1/0/131070469/tutubigofebozi.pdf
    • https://cdn.shopify.com/s/files/1/0457/4583/2092/files/new_bodo_song_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/6172/2788/files/19558745817.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/the_ascended_masters_light_the_way.pdf
    • https://c25c66a1-3af4-490d-b5a7-a18f9ed347f0.filesusr.com/ugd/96a426_d46dc2af97ec4335acd8c9230a978baf.pdf?index=true
    • https://9b09fe94-15d9-43ce-a6e4-495bc609c452.filesusr.com/ugd/9cb927_9da66aa4330e4ede92096474844bee6f.pdf?index=true
    • https://558a2432-e936-4811-8006-0f08de7e2367.filesusr.com/ugd/7d21c0_2aa36c5537964f1783462d6801f51a4c.pdf?index=true
    • https://bbe1d4b9-7a49-4ed6-987b-955bf9b50d8b.filesusr.com/ugd/8d5d69_e0444b70f2eb4fa6bc9ea3b25c2f7cd3.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006015.bin
8465ae6e1b79864914a340d17cb487f3524253efb026a7ce9e8559df96a412dd
pdf-font-stream PDF embedded font (sfnt) at offset 0x6015 5568 bytes
font_01_sfnt_off00007309.bin
dfe32c3218a10c2aec99cfc8ede090f59958becf4b13868e18c17927c1f2c37f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7309 10028 bytes
font_02_sfnt_off000095aa.bin
b4d62efa195a2b4e000f8e677d07f67e36e8fcfc99319eaa5118aed7638d171a
pdf-font-stream PDF embedded font (sfnt) at offset 0x95AA 16160 bytes